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SOR® Pivot Seal pressure switches are rugged, field-mounted instruments that incorporate a flexible modular design providing cost effective sensing solutions. The pressure sensing element of the Pivot Seal pressure switch is a force-balance, piston-actuated assembly sealed by an o-ring. As with all SOR pressure switches, the actual motion of the piston to actuate the micro switch is only several thousandths of an inch, resulting in minimal o-ring wear. Media pressure on the area of the piston counteracts the force of the range spring (adjustable by the adjusting nut screw) and moves the piston shaft and the force transmitter to directly actuate the electrical snap-action switching element.

The design of the piston/port assembly results in the device being wellsuited for a wide variety of high pressure fluid power (hydraulic) applications, especially where high-shock pressures and high-cycle rates are expected, and where normal industrial clean hydraulic fluid is used.

Basic Pivot Seal pressure switches with standard wetted parts are normally suitable for a wide variety of high-pressure fluid power (hydraulic) applications, especially where high-shock pressures and high-cycle rates are expected, and where normal industrially clean hydraulic fluid is used. 

The Pivot Seal pressure switches are suitable for a wide variety of fluid power (hydraulic) applications. Specific application requirements can normally be met by selecting optional components, such as, switching elements and o-ring seal. Certain applications may require customized specials. Consult us for more information.

Note: The SOR Pivot Seal is not suitable for process applications. Refer to Pressure and Vacuum Switches for Process Applications.

For more information on the details and options available, please download Pivot Seal Pressure Switches (Form CAT219).